Running javascript inside php without echo -

so have php file on server handles http post requests. when receives post request, runs javascript script.

currently have script echo'...'; problem script inside echo, sends raw code place http post generated without running script.

is there way can run script without echoing back.

thanks

<?php  define('verify_token', 'abc'); $method = $_server['request_method'];  if ($method == 'get' && $_get['hub_mode'] == 'subscribe' && $_get['hub_verify_token'] == verify_token) { echo $_get['hub_challenge']; }   else if ($method == 'post') {  echo ' <script type="text/javascript" src="parse-1.4.2.min.js"></script> <script type="text/javascript">                   parse.initialize("id1", "id2");          var testobject = parse.object.extend("test");         var testobject = new testobject();         testobject.set("key", "post");         testobject.save(); </script>'; } ?> 

you can try

<?php else if ($method == 'post') {?> <script type="text/javascript" src="parse-1.4.2.min.js"></script> <script type="text/javascript">                   parse.initialize("id1", "id2");          var testobject = parse.object.extend("test");         var testobject = new testobject();         testobject.set("key", "post");         testobject.save(); </script> <?php } ?> 

else don't think there other way